Fluid-pressure governor.



A. L. SMYLY.

FLUID PRESSURE GOVERNOR.

APPLICATION FILED III/w21. 191e.

1,293,7 Patented Feb. 4, 1919..

2 SHEETS-SHEET I.

3 Zcl.

A. L. SNIYLY.

FLUID PRESSURE GOVERNOR.

APPLICATION FILED III/w21, IeIs.

1,298,22? ,Patented Feb. 4, 1919.

2 SHEETS-SHEET 2.

or CHICAGO, rumors.

FLUID-PRESSURE GOVERNOR.

Specification of Letters Patent.

Patented rena, rara.

Application :Bled May 27, 1916. Serial N0.100,193.`

To all whom it may concern: y

Be it known that I, ARTHUR L. SMYLY, a citizen of the United States of America, and resident of Chicago, Cook county, Illinois, have invented a certain new and useful Improvement in Fluid-Pressure Governors, of which the following is a specification.

y invention relates to duid-pressure governors in general, but ,more particularly to those employed for controlling the supply of illuminating or fuel gas, and especially to those which have an inlet-valve which 'is au.- tomatically controlled by -a diaphragm, or

' other suitable means.

Objects of my invention are to provide an improved construction and arrangement whereby the movable valve-element is moreeasily' adjusted and more readily removed from the governor than heretofore; to provide an improved construction and arrangement whereby the lever-arm which connects the valve-mechan ism with the diaphragm can be lifted out of its bearings and moved endwise out of the wayin order to afford access to the valve-seat; to provide an 'improved construction and arrangement whereby it will not be necessary to remove the entirecover of the governor-casing when it is desired to obtain access to the valve-mechanism; to provide an improved construction and arran ement whereby short len -hs of pipe of di erent diameters may be l or the overnor and to rovide certain dedg p of 'a fluid-pressure governor embodying the 'principles of my invention. V

Fig. 2 is a vertical section on line 2-2 in 1 I Flg.

Fig; 3 is a vertical section on line H in Fig. 1.

Fig. 4 is a plan view of a portion of the governor, showing the cover thereof re moved.

line -1n Fig. .1.

Fig. 6 is a plan of the governor shown in F ig. 1o v I V1Q for the ball L, so th Fig. 5 is an enlarged horizontal section on axis but is Aa diaphragm D is disposed horizontally on the rim of the caslng and is clamped in place by the removable cover d, which latter is secured in place by screws l in the usual and .well-known manner. A spring 2 bears upon the top of said diaphragm, and the tension of this spring is regulated by .the screw 3 in the top af the cover, lthereby to adjust the tension of the diaphragm and regulate the action of the governor. The bottom of said diaphragm is provided with a bracket E whichV is removably held in place by the screw e inserted downwardly through the diaphragm. The lower is provided with a pivot 4 bolt `0r rivet, and which extends transversely through the lower fork-portion 5 of said bracket. The horizontal] -disposed lever F is provided with a transverse pivot f which is supported in bearin 6 formed on the gitudinal slot 7 for the pivot 4f, whereby this ivot bearin the pivot 4 reaches the other end of said slot. A screwan adjustable screw-threaded-support H provided at its lower end with a ball L, the upper end of this support having a slot or groove 8 for a screw-driver. The movable valve-element I is adapted to engage the sta- Y a screw-threaded plulgl, as shown, and being preferably formed wit a thin edge which makes a circularindentation in the said leather. The top of this valve-element I is provided with a socket at a socket-joint is provided between the said valve-element and the said support, which permits l the valve-element to rock around and adjust itselfv to the valve-seat. A. The threaded-member G has a vertical hole 11 at one side of the support H, and the valve-element I has a vertically-disposed pin 12 .which extends upwardlyinto said hole,- with a loose t, whereby the said valve-element cannot rotate about .a vertical free to rock around and adjust provided with l screwed therein,

itself to the valve-seat. The member G has a shoulder 13 which engages'the top of the lever F to limit the downward insertion of said member, and which serves to prevent the movable valve-element from being taken out and then replaced in a dierent position-that is to say, the taking out and replacement of the valve-element will not result in its being displaced or turned about a vertical axis, at least not to any great extent, as the tightening of the valve-member G until its shoulder 13 is against the top of the lever F will always bring the valve-element I into the final position with the pin 12 in about the position shown. In this way, the valve-element I, after it has become fitted to the valve-seat, will always have the same fit, or substantially so, after being taken out and replaced.

The valve-mechanism is provided with a separatecover J which is removable inde-i pendently of' the cover d, so that access can be obtained to said mechanism without removing the cover d or the diaphragm. This cover J has an opening j through which access can be obtained to said mechanism, for 'the adjustment thereof, and rthis opening is normally closed by the plug 14 which is or by any other suitable means.- This cover J is provided with depending lugs 15 which are notched to fit over the pivot f, one at each side of the lever F, thereby holding the said lever against 05 bottom of the chamber of lateral displacement.

`With this' construction, the bearings 6 do not need to be accurately finished or are finished on their inner surfaces, and where they-engage the pivot f, but this is an easy operation inasmuch as the cover J is a fiat piece of metal .which makes it convenient to handle. The bearings 6, however, are inside of the casing, be somewhat difficult to accurately finish these bearings; but with the construction shown this is not necessary, inasmuch as the lugs 15 are depended upon to accurately position the lever F and its pivot f and thereby insure accuracy in the operation of the valve-mechanism.

The gas enters at B and passes up through the casing and out through the opening C, it being understood that these internallythreaded-bosses are connected with gas pipes in any suitable manner. When the pressure becomes too great, the diaphragm D moves upward and thereby causes the valve-element I to move downward against the valve-` seat. As soon as the pressure in the governor is reduced, the valve is then automatically opened.

The interior of the casing below the diaphragm communicates with the upper end of'a short section of relatively short pipe K which has its upper end screwed into the the casing. A

formed. The llugs 15- and it would means? cavity L is formed below said chamber around the' upper portion of said pipe, en a short section of relatively large pipe M is screwed into the bottom of this cavity, being telescoped overthe smaller pipe. 4The two pipes are of suitable length, and the larger pipe is filled with -a heavy oil lor liquid which will form a seal or trap. The lower end of the pipe K does not come quite to the bottom of the pipeM, the lower end of the latter being closed by a cap m or any other suitable means; An outlet Z communicates with the cavity L, in the usual and well-known manner to which a blow-off pipe can be secured. Thus, the pipe-sections K and M are advantageously employed to prm an effective seal or trap, and this is particularly advantageous when a heavy oil is to be used as a substitute for mercury', as in such case a greater depth .is necessary.

The screen N in the intake serves to keep dirt, etc., from 'entering the governor. It will also be seen that the dependin edge n which is the lower end of sai 'threaded plug forming the valve-seat will tend to prevent particles of scale from entering the governor, as they will be prevented from sliding along and entering the hole. In other words, the particles of scale will have a tendency to collect in the cavity or pocket extending around outside of this depending edge n, and will not enter the opening.

What I claim as my invention is 1. Ina fluid-pressure governor, a pivoted lever, devices to operate said lever, a valveseat, a member screwed into said lever, a support screwed into said member, a movable valve-element to engage said valveseat, a ball-and-soc'ket joint between said support and valve-element, and means 'to' prevent rotation of said movable valve-element when said support is adjusted.

2. In a fluid-pressure governor, lever,v devices to operate said lever, a valveseat, a member screwed into said lever, a support screwed into said member, a movable valve-element -to engage said valve-seat,

a ball-and-socket joint between said support and valve-element, and means to prevent ro tation of said movable valve-element when said support is adjusted, said governor having a casing provided with an opening immediately over said member, so that said support may be adjusted, and removable g means to close said opening.

port and valve-element, and means to prevent rotation -or'V said movable valve-element when said support is adjusted, said lever a pivoted ing disposed in position to afford access tonaeaaar having a threaded opening therein for said member and through which said valve-element may pass when said member is unscrewed therefrom.

4. In-a Huid-pressure governor, a pivoted lever, devices to operate said lever, *valveseat, a member screwed into said lever, a support screwed into said member, a movable valve-element to engage said valve-seat, a ball-and-socket joint between said support and 'valve-element, and means to prevent rotation of said movable valve-element when said support isadjusted, said governor having a caslng provided with a cover composed of separate and independently-removable sections, one of said cover-sections besald valve.

5. In 'a fluid-pressure governor, a lever, a pivot-bearing for said lever, a valve operated by said lever, and means to operate said lever, said pivot-bearing permitting raising of said lever therefrom, and said lever having a slot for engaging said means to permit endwise shifting of said lever when lifted from its pivot-bearing, thereby to al'ord'access to the valve-seat.

6. In a fluid-pressure governor, a lever, a pivot-bearing ing lugs to position said lever and obviate necessity .for accurate formation of said pivot-bearing, a valve operated by said lever, and means to operate said lever.

7. In a Huid-pressure governor, a lever, a

for said lever, a cover havpivot-bearing for said lever, a valve operated by said lever, means to operate said lever, said pivot-bearing permitting raising of said lever therefrom, and said lever having a slot for enga g said means to permit endwise shifting of said lever'when lifted om its pivot-bearing, thereby to afford access to the valve-seat, a on said cover to position said lever and obviate the necessity for accurate formation of said pivot-bearing.

8. ln a fluid-pressure governor, a lever, a pivot-bearing for said lever, a cover having lugs `to position said lever and obviate the necessity for accurate formation of said pivot-bearing, a valve operated by said lever, and means to operate said lever, said lu being spaced apart to embrace the lever and notched to engage the pivot.

9. In a fluid-pressure governor, a pivoted lever, devices to operate said lever, a valveseat, 'a member screwed into said support screwed into said member, a movable valve-element to engage said valve-seat, a ball-and-socket joint between said support and valve-element, and means to prevent rotation of said movable valve-element when said support is adjusted, said ing an upright pin on said and a hole in said mem pin loosely therein.

Signed by me at Chicago, Illinois, this means includvalve-element ber to recelve sald 24th day of May,

til

cover, and meansl lever, a 

